Craword Co Roadgrade Dam 22-84-38 Reservoir Report
Nearby: Norlund 1 Campbell Dam
Last Updated: December 15, 2025
Crawford CO Roadgrade Dam 22-84-38 is a key structure in the management of water resources in Iowa, specifically in the city of Denison.
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Summary
Built in 2003 by the NRCS, this earth dam stands at a height of 25 feet and serves the primary purpose of grade stabilization along the TR-ROCKY RUN stream. With a storage capacity of 117 acre-feet, the dam plays a crucial role in controlling water flow and ensuring the safety and stability of the surrounding area.
Managed by the local government and regulated by the Iowa DNR, Crawford CO Roadgrade Dam 22-84-38 is classified as having a low hazard potential with a moderate risk assessment. Despite its importance in water resource management, the dam is currently rated as "Not Rated" in terms of its condition assessment, highlighting the need for further evaluation and maintenance to ensure its long-term functionality. The dam's uncontrolled spillway and lack of outlet gates indicate potential areas for improvement to enhance its effectiveness in flood control and water management.
As a vital infrastructure in the region, Crawford CO Roadgrade Dam 22-84-38 serves as a reminder of the intricate relationship between water resources and climate dynamics. With its location in Crawford County, Iowa, this dam stands as a testament to the ongoing efforts to balance the needs of water conservation, flood protection, and environmental sustainability. As water resource and climate enthusiasts continue to monitor and assess the impact of such structures, the importance of maintaining and enhancing these dams for the benefit of both communities and ecosystems becomes increasingly evident.
Year Completed |
2003 |
Dam Length |
570 |
Dam Height |
25 |
River Or Stream |
TR- ROCKY RUN |
Primary Dam Type |
Earth |
Surface Area |
7.4 |
Drainage Area |
0.8 |
Nid Storage |
117 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Raccoon River Near Sac City
|
312cfs |
Maple River At Mapleton
|
323cfs |
Little Sioux River Near Turin
|
1040cfs |
Soldier River At Pisgah
|
112cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Little Sioux River At Correctionville
|
327cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Craword Co Roadgrade Dam 22-84-38